Acute, Obtuse, Right Triangles

Name this triangle.

• acute triangle

• right triangle

• straight triangle

• obtuse triangle

Tags

CCSS.4.G.A.2

• acute
• obtuse
• right

Tags

CCSS.4.G.A.2

Q1. What type of angle is less than 90 degrees?

• A) acute

• B) obtuse

• C) right

Tags

CCSS.4.G.A.2

This is what kind of angle?

• right

• acute

• obtuse

• straight

Tags

CCSS.4.G.A.1

Classify this triangle.

• right

• acute

• obtuse

Tags

CCSS.4.G.A.2

I know this is an acute triangle because

• there is a 90° angle

• all of the angles are less than 90 degrees

• there is an angle greater than 90° but less than 180°

Tags

CCSS.4.G.A.2

What Type of Triangle is this?

• right triangle

• acute triangle

• obtuse triangle

Tags

CCSS.4.G.A.2

Which triangle has all three of its angles measuring less than 90°?

• Acute

• Right

• Obtuse

• Equilateral

Tags

CCSS.4.G.A.2

Classify this triangle.

• Acute

• Obtuse

• Right

Tags

CCSS.4.G.A.2

A triangle that has 3 angles that measure less than 90 degrees.

• Right triangle

• Acute triangle

• Isosceles triangle

• Obtuse triangle

Tags

CCSS.4.G.A.2